CN106541968A - The subway carriage real-time prompt system of view-based access control model analysis and recognition methodss - Google Patents
The subway carriage real-time prompt system of view-based access control model analysis and recognition methodss Download PDFInfo
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- CN106541968A CN106541968A CN201610873534.4A CN201610873534A CN106541968A CN 106541968 A CN106541968 A CN 106541968A CN 201610873534 A CN201610873534 A CN 201610873534A CN 106541968 A CN106541968 A CN 106541968A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
- B61L27/40—Handling position reports or trackside vehicle data
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
- B61L27/04—Automatic systems, e.g. controlled by train; Change-over to manual control
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Abstract
The present invention relates to a kind of subway carriage real-time prompt system of view-based access control model analysis, including：Image acquisition units；Sensor unit：Sensor unit sends shooting signal；Image is stored and conversion unit；Graphics processing unit：The image digital signal of image storage and conversion unit transmission is received, the image shot according to the first CCD camera judges that compartment shifts the number of passenger, judges that compartment is got on the bus number, passes to relay unit by compartment real-time number according to the image of the second CCD camera shooting；Relay unit：The data of transmission graphics processing unit are to Tip element；Tip element：The data that relay unit transmission is come are shown by the wait display screen in area of passenger in the subway station of the next stop.Using the present invention, in real time passengers quantity in compartment can be judged, enable passenger to obtain more idle car information, reduce unnecessary crowded and pick-up time.
Description
Technical field
The present invention relates to the technical field of subway carriage real-time prompting, especially a kind of subway carriage of view-based access control model analysis
Real-time prompt system and recognition methodss.
Background technology
In recent years, urban rail transit in China is developed rapidly, and each big city is all carrying out substantial amounts of metro construction work
Journey.In the case of traffic increasingly congestion, subway trip also progressively becomes the choice for traveling of more people.Subway comfortableization, intelligence
Change also becomes the demand of society.And when subway is taken, often occur, some compartments are fewer in number, and some compartment numbers are just
More, but next stop passenger queues up when getting on the bus and be not aware that situation, the waste that can form space and the congestion got on the bus cause to get on the bus
Time lengthening, situations such as safety coefficient is reduced.Do not occur at present and a kind of be specifically designed for what subway free time compartment gave warning in advance
Method and system, the present invention are based on image procossing and Visual analysis techniques, mainly the passenger's number in identification subway carriage simultaneously
Point out in advance.Many bus passenger numbers statistics are also occurred in that at present, subway demographics, the anti-method such as steal a ride, traditional method have
With methods such as photoswitch, pressure sensings, these method detection number degree of accuracy are not high, react also slow, nowadays occur
Image processing techniquess, also have for demographics, but subway, flow of the people is huge, and situation is complicated, the method for demographics
It is more complicated.
The content of the invention
The technical problem to be solved in the present invention is：There is provided a kind of analysis of view-based access control model subway carriage real-time prompt system and
Recognition methodss, judge to passengers quantity in compartment in real time.
The technical solution adopted for the present invention to solve the technical problems is：A kind of subway carriage of view-based access control model analysis is real-time
Prompt system, including：
Image acquisition units：Including the first CCD camera, on the ceiling of subway carriage, shooting direction is towards car
Railway carriage or compartment join domain, shifts the image information in compartment for gathering passenger；The corresponding two subway safe door regions in single compartment are equal
Second CCD camera is installed, shooting direction is got on or off the bus the image information of passenger for gathering compartment towards subway safe door region；
Sensor unit：Including the first Infrared laser emission device, the first iraser receptor, the second Infrared laser emission
Device, the second iraser receptor, the first Infrared laser emission device, the first iraser receptor match, and described first
Infrared laser emission device, the first iraser receptor are separately mounted to the both sides of compartment join domain；
The second Infrared laser emission device, the second iraser receptor match, the second Infrared laser emission device,
Second iraser receptor is separately mounted to subway safe door both sides；
Sensor unit sends shooting signal：Including：It is infrared sharp that the first iraser receptor does not receive first
First CCD camera operation during the signal of optical transmitting set shoots picture；It is red that the second iraser receptor does not receive second
Second CCD camera operation during the signal of outer generating laser shoots picture；
Image is stored and conversion unit：The image of storage collection, and image analoging signal is converted into into image digital signal
Transmit to graphics processing unit；
Graphics processing unit：The image digital signal of image storage and conversion unit transmission is received, according to the first CCD camera
The image of shooting judges that compartment shifts the number of passenger, and the image shot according to the second CCD camera judges that compartment is got on the bus number, general
The real-time number in compartment passes to relay unit；
Relay unit：The data of transmission graphics processing unit are to Tip element；
Tip element：The data that relay unit transmission is come are entered by the wait display screen in area of passenger in the subway station of the next stop
Row shows.
The recognition methodss of the subway carriage real-time prompt system of view-based access control model analysis, including judge that compartment is got on or off the bus number
Method：
Step 1：Identification subway is got off number：The picture that the second CCD camera is photographed is carried out with AdaBoost algorithms
Face datection, obtains number sum1 of getting off in subway safe door region；
Step 2：Identification subway carriage is got on the bus number：In the picture that motion Hough change the second CCD cameras of identification are photographed
Circular quantity, obtain subway safe door region and get on or off the bus total passenger sum ＇, number sum2=sum of getting on the bus ＇-sum1；
The number sum1 ＇ that gets off in another subway safe door region, the number of getting on the bus in another subway safe door region
Sum2 ＇ can be obtained in the same manner；
Above-mentioned recognition methodss, including the method for judging compartment shift number：
Step 1:Motion Hough changes carry out border circular areas positioning to the picture that the first CCD camera is photographed, if circle
The coordinate in domain changes, then it represents that for mobile passenger；If the coordinate of border circular areas does not change, then it represents that take advantage of for not movement
Visitor；
Step 2：The border circular areas changed to coordinate carry out gray value judgement, and gray value is people more than given threshold
Face, gray value is people rear less than given threshold, and face indicates entry into compartment, and people rear represents leaves compartment, adds up
Device carries out plus-minus process, can obtain the number sum3 that compartment shifts passenger.
Above-mentioned recognition methodss include the method for judging the real-time number in compartment：
If original number sum0 in compartment, the real-time number in compartment is sum, then sum=sum0+sum2+sum2 ＇-sum1-
Sum1 ＇+sum3.
In above-mentioned recognition methodss, Tip element is sorted from small to large according to real-time number sum in compartment in each compartment
Afterwards ranking results are shown by the wait display screen in area of passenger in the subway station of the next stop.
The invention has the beneficial effects as follows：Using the present invention, in real time passengers quantity in compartment can be judged, enable passenger
More idle car information is accessed, unnecessary crowded and pick-up time is reduced.
Description of the drawings
The present invention is further described below in conjunction with the accompanying drawings.
Fig. 1 is the theory diagram of the present invention；
Fig. 2 is the scheme of installation of first CCD camera of the present invention；
Fig. 3 is the scheme of installation of second CCD camera of the present invention；
Specific embodiment
Presently in connection with accompanying drawing, the present invention is further illustrated.These accompanying drawings are simplified schematic diagram only with signal side
The basic structure of the formula explanation present invention, therefore which only shows the composition relevant with the present invention.
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of subway carriage real-time prompt system of view-based access control model analysis, including：
Image acquisition units：Including the first CCD camera, on the ceiling of subway carriage, shooting direction is towards car
Railway carriage or compartment join domain, shifts the image information in compartment for gathering passenger；The corresponding two subway safe door regions in single compartment are equal
Second CCD camera is installed, shooting direction is got on or off the bus the image information of passenger for gathering compartment towards subway safe door region；
Sensor unit：Including the first Infrared laser emission device, the first iraser receptor, the second Infrared laser emission
Device, the second iraser receptor, the first Infrared laser emission device, the first iraser receptor match, and described first
Infrared laser emission device, the first iraser receptor are separately mounted to the both sides of compartment join domain；
The second Infrared laser emission device, the second iraser receptor match, the second Infrared laser emission device,
Second iraser receptor is separately mounted to subway safe door both sides；
Sensor unit sends shooting signal：Including：It is infrared sharp that the first iraser receptor does not receive first
First CCD camera operation during the signal of optical transmitting set shoots picture；It is red that the second iraser receptor does not receive second
Second CCD camera operation during the signal of outer generating laser shoots picture；
Image is stored and conversion unit：The image of storage collection, and image analoging signal is converted into into image digital signal
Transmit to graphics processing unit；
Graphics processing unit：The image digital signal of image storage and conversion unit transmission is received, according to the first CCD camera
The image of shooting judges that compartment shifts the number of passenger, and the image shot according to the second CCD camera judges that compartment is got on the bus number, general
The real-time number in compartment passes to relay unit；
Relay unit：The data of transmission graphics processing unit are to Tip element；
Tip element：The data that relay unit transmission is come are entered by the wait display screen in area of passenger in the subway station of the next stop
Row shows.
In Fig. 2, on the ceiling of the adjacent compartment that the first CCD camera 9 is arranged on the compartment that need to recognize number, a CCD
9 shooting direction of camera is matched towards compartment join domain 7, the first Infrared laser emission device 8 with the first iraser receptor 10
Close.
As shown in figure 3, the second CCD camera 3 is arranged on metro safety ceiling outdoors, the second CCD camera 3 is towards ground
Ferrum secure gate area 4.Second Infrared laser emission device 5 and the second iraser receptor 6 are engaged.
The recognition methodss of the subway carriage real-time prompt system of view-based access control model analysis, including judge that compartment is got on or off the bus number
Method：
Step 1：Identification subway is got off number：The picture that the second CCD camera is photographed is carried out with AdaBoost algorithms
Face datection, obtains number sum1 of getting off in subway safe door region；
Step 2：Identification subway carriage is got on the bus number：In the picture that motion Hough change the second CCD cameras of identification are photographed
Circular quantity, obtain subway safe door region and get on or off the bus total passenger sum ＇, number sum2=sum of getting on the bus ＇-sum1；
The number sum1 ＇ that gets off in another subway safe door region, the number of getting on the bus in another subway safe door region
Sum2 ＇ can be obtained in the same manner；
Above-mentioned recognition methodss, including the method for judging compartment shift number：
Step 1:Motion Hough changes carry out border circular areas positioning to the picture that the first CCD camera is photographed, if circle
The coordinate in domain changes, then it represents that for mobile passenger；If the coordinate of border circular areas does not change, then it represents that take advantage of for not movement
Visitor；
Step 2：The border circular areas changed to coordinate carry out gray value judgement, and gray value is people more than given threshold
Face, gray value is people rear less than given threshold, and face indicates entry into compartment, and people rear represents leaves compartment, adds up
Device carries out plus-minus process, can obtain the number sum3 that compartment shifts passenger.
Above-mentioned recognition methodss include the method for judging the real-time number in compartment：
If original number sum0 in compartment, the real-time number in compartment is sum, then sum=sum0+sum2+sum2 ＇-sum1-
Sum1 ＇+sum3.
In above-mentioned recognition methodss, Tip element is sorted from small to large according to real-time number sum in compartment in each compartment
Afterwards ranking results are shown by the wait display screen in area of passenger in the subway station of the next stop.
Using the present invention, in real time passengers quantity in compartment can be judged, enable passenger to obtain more idle compartment
Information, reduces unnecessary crowded and pick-up time.
Graphics processing unit carries out pretreatment to the image for receiving, and Image semantic classification is mainly comprised the steps of：
Step 1：Image to collecting carries out gray processing：Using mean value method, seek each pixel in image three points
Amount R, the meansigma methodss of G, B are gray value, and then the meansigma methodss are given to the three-component of this pixel.
It is output image to define f (i, j)；R (i, j), G (i, j), B (i, j) are original R, G, B value；R1 (i, j), G1 (i,
J), B1 (i, j) is R after gray processing process, G, B value.Then：
F (i, j)=[R (i, j)+G (i, j)+B (i, j)]/3 (1)
R1 (i, j)=G1 (i, j)=B1 (i, j)=f (i, j) (2)
Step 2：Process is filtered to image：Using median filtering method：The gray value of each pixel is set to into this
The intermediate value of all pixels point gray value in certain neighborhood window is put, the actual value for allowing the pixel value of surrounding to be close to, so as to eliminate orphan
Vertical noise spot.
It is 3 × 3 regions to arrange W two dimension pattern plates, each pixel in region is ranked up, then：
G (i, j)=med { f (i-k, j-l), (k, l ∈ W) } (3)
Wherein, f (i, j), g (i, j) are respectively image after original image and process.
The process of subway carriage external image：It is mainly used in recognizing the number that subway is got on or off the bus, mainly comprises the steps of：
Step 1：The second CCD camera angle is adjusted, makes captured picture only show the image information of subway secure gate area,
Filter out other unnecessary image informations.
Step 2：Image segmentation, the image for only taking out subway safe door region are analyzed；
Step 3：When passenger getting on/off, the second iraser receptor does not receive the letter of the second Infrared laser emission device
Number when the second CCD camera operation shoot picture；
Step 4：Identification subway is got off number, and during passenger getting off car, passenger's face can be photographed by camera, real-time monitoring subway
The face number that secure gate area photographs, it is possible to judge the number of getting off, by carrying out face with AdaBoost algorithms
Detection.
AdaBoost algorithms carry out method for detecting human face：
1st, a series of training sample (p are given1,q1),(p2,q2),.......(pn,qn), wherein q1=0 represents which is non-
Face sample, q1=1 represents face sample, and n is number of training altogether.
2nd, initialize weight
3rd, to a=1,2 ... .Y (5)
(1) normalized weight：
(2) to each feature f, train a Weak Classifier h (p, f, t, θ)；If calculating the grader of all features of correspondence
Weighting riError rate ξf：
ξf=∑iri|h(pi,f,t,θ)-qi| (7)
(3) choose optimal Weak Classifier ha(p)
ξa=minf,t,θ∑iri|h(pi,f,t,θ)-qi|=∑iri|h(pi,fa,ta,θa)-qi| (8)
ha(p)=h (p, fa,ta,θa) (9)
According to this most Weak Classifier, weight is adjustedIf wherein piCorrectly classified
Then bi=0, bi=1 represents piBy mistake classification,
4th, it is last to be categorized as by force：
Wherein
The strong classifier that the algorithm is obtained, carries out adjusting thresholds, allows each layer of face sample to pass through, and does not allow non-face part
Pass through, after detecting face, accumulator is added up automatically, obtains number sum1 of getting off；
Step 5：Identification subway carriage is got on the bus number, and the face of passenger and head zone are approximately round, is become by Hough
The method for changing identification circle, figure P (i, j) for obtaining, by recognize circular quantity number obtain the passenger that gets on or off the bus at safety door
Total sum ＇, the total passenger sum ＇ that get on or off the bus deduct sum1 and obtain number sum2 of getting on the bus,
1st, according to human body head sized data, if the excursion and angle, θ of radius r；
2nd, by
The value of p and q, wherein p are tried to achieve, q is correspondence parameter space coordinate；
3rd, in the reasonable scope, carrying out adding up searches out maximum, tries to achieve central coordinate of circle and radius, so as to obtain figure for p, q
The center of circle in shape.
4th, will get to obtain by round center number carries out adding up and need the total passenger mesh sum ＇ that get on or off the bus.
Step 6：General one compartment of subway has two car doors, and the number of getting on or off the bus in a compartment should include two cars
The number of getting on or off the bus recognized at door, the number sum1 ＇ that gets off in another subway safe door region, another subway safe door region
The number sum2 ＇ that gets on the bus can obtain in the same manner.
The process of subway carriage internal image：It is mainly used in recognizing the number in transfer compartment,
Step 1：The angle of the first CCD camera is adjusted, the picture display compartment join domain as much as possible of shooting is made；
Step 2：Image segmentation, the image of a pick-up railway carriage or compartment join domain are analyzed；
Step 3：During train operation, the first iraser receptor does not receive the letter of the first Infrared laser emission device
Number when the first CCD camera operation shoot picture；
Step 4：The face of people and head rear are similar with circle, so changing to Circle in Digital Images shape region with Hough
It is identified.
Step 5：Compartment some passengers stand in compartment join domain, need to only recognize whether the coordinate of border circular areas occurs to become
Change, it is to move passenger to change, be without transfer passenger without changes in coordinates.
Step 6：Identification transfer passenger's number：In the picture for photographing, some passengers photograph front, and some passengers shoot
To the back side, after border circular areas positioning, the back side is passenger's head rear area, and front is face region, by a CCD
The position of camera, dorsad camera, to leave compartment, is to enter compartment towards camera for definition, and included step is as follows：
(1) gray value of face and head rear area is distinguishing, judges to leave compartment by distinguishing gray value
Still enter compartment.
(2) light is substantially fixed in the subway, so gray-value variation is less, the gray value of face be more than
95, the gray scale of people's rear area is less than 65, and the such as meansigma methodss 80 of setting 95～65 are set for difference face and people's rear area
Determine threshold value.
(3) when a people is out of and into compartment, accumulator carries out adding and subtracting by processing sentences the number that compartment shifts passenger
Mesh sum3.
(4) set original number sum0 in compartment, the real-time number in compartment is sum, then sum=sum0+sum2+sum2 ＇-
Sum1-sum1 ＇+sum3.
With the above-mentioned desirable embodiment according to the present invention as enlightenment, by above-mentioned description, relevant staff is complete
Various change and modification can be carried out in the range of without departing from this invention technological thought entirely.The technology of this invention
Property scope is not limited to the content in description, it is necessary to its technical scope is determined according to right.
Claims (5)
1. the subway carriage real-time prompt system that a kind of view-based access control model is analyzed, it is characterised in that include：
Image acquisition units：Including the first CCD camera, on the ceiling of subway carriage, shooting direction connects towards compartment
Region is connect, the image information in compartment is shifted for gathering passenger；The corresponding two subway safe door regions in single compartment are respectively mounted
Second CCD camera, shooting direction are got on or off the bus the image information of passenger for gathering compartment towards subway safe door region；
Sensor unit：Including the first Infrared laser emission device, the first iraser receptor, the second Infrared laser emission device,
Second iraser receptor, the first Infrared laser emission device, the first iraser receptor match, and described first is infrared
Generating laser, the first iraser receptor are separately mounted to the both sides of compartment join domain；
The second Infrared laser emission device, the second iraser receptor match, the second Infrared laser emission device, second
Iraser receptor is separately mounted to subway safe door both sides；
Sensor unit sends shooting signal：Including：The first iraser receptor does not receive the first iraser and sends out
First CCD camera operation during the signal of emitter shoots picture；It is infrared sharp that the second iraser receptor does not receive second
Second CCD camera operation during the signal of optical transmitting set shoots picture；
Image is stored and conversion unit：The image of storage collection, and image analoging signal is converted into into image digital signal transmission
To graphics processing unit；
Graphics processing unit：The image digital signal of image storage and conversion unit transmission is received, is shot according to the first CCD camera
Image judge that compartment shifts the number of passenger, the image shot according to the second CCD camera judges that compartment is got on the bus number, by compartment
Number passes to relay unit in real time；
Relay unit：The data of transmission graphics processing unit are to Tip element；
Tip element：The data that relay unit transmission is come are shown by the wait display screen in area of passenger in the subway station of the next stop
Show.
2. the recognition methodss of the subway carriage real-time prompt system of the view-based access control model analysis described in a kind of claim 1, its feature
It is, including judging that compartment gets on or off the bus the method for number：
Step 1：Identification subway is got off number：Face is carried out to the picture that the second CCD camera is photographed with AdaBoost algorithms
Detection, obtains number sum1 of getting off in subway safe door region；
Step 2：Identification subway carriage is got on the bus number：Circle in the picture that motion Hough change the second CCD cameras of identification are photographed
Figurate number amount, obtains subway safe door region and gets on or off the bus total passenger sum ＇, number sum2=sum of getting on the bus ＇-sum1；
The number sum1 ＇ that gets off in another subway safe door region, the number sum2 ＇ that gets on the bus in another subway safe door region are same
Li Ke get.
3. recognition methodss according to claim 2, it is characterised in that the method including compartment shift number is judged：
Step 1:Motion Hough changes carry out border circular areas positioning to the picture that the first CCD camera is photographed, if border circular areas
Coordinate changes, then it represents that for mobile passenger；If the coordinate of border circular areas does not change, then it represents that not move passenger；
Step 2：The border circular areas changed to coordinate carry out gray value judgement, and gray value is face more than given threshold
Portion, gray value is people rear less than given threshold, and face indicates entry into compartment, and people rear represents leaves compartment, accumulator
Plus-minus process is carried out, the number sum3 that compartment shifts passenger can be obtained.
4. recognition methodss according to claim 3, it is characterised in that the method including the real-time number in compartment is judged：
If original number sum0 in compartment, the real-time number in compartment be sum, then sum=sum0+sum2+sum2 ＇-sum1-sum1 ＇+
sum3。
5. recognition methodss according to claim 4, it is characterised in that compartment real-time people of the Tip element according to each compartment
Ranking results are shown after being sorted from small to large by number sum by the wait display screen in area of passenger in the subway station of the next stop
Show.
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| CN107351870A (en) * | 2017-06-16 | 2017-11-17 | 深圳市盛路物联通讯技术有限公司 | A kind of passenger's bootstrap technique and system |
| CN107599971A (en) * | 2017-09-04 | 2018-01-19 | 驭势（上海）汽车科技有限公司 | Specific aim is got off based reminding method and device |
| CN110852984A (en) * | 2018-07-24 | 2020-02-28 | 丰田自动车株式会社 | Information processing system, storage medium storing program, and information processing apparatus control method |
| CN109598257A (en) * | 2018-12-28 | 2019-04-09 | 福建工程学院 | A kind of bootstrap technique and system of equilibrium subway carriage passenger capacity |
| CN110166748A (en) * | 2019-05-14 | 2019-08-23 | 郑州铁路职业技术学院 | Subway carriage crowding suggestion device and subway carriage crowding reminding method |
| CN110341766A (en) * | 2019-06-20 | 2019-10-18 | 朱来清 | Adaptive duration adjusts platform |
| CN110893870A (en) * | 2019-06-20 | 2020-03-20 | 朱来清 | Self-adaptive time length adjusting method |
| CN110893870B (en) * | 2019-06-20 | 2021-11-05 | 朱来清 | Self-adaptive time length adjusting method |
| CN112298285A (en) * | 2019-07-26 | 2021-02-02 | 比亚迪股份有限公司 | Train control system, train control method and train |
| CN113129583A (en) * | 2019-12-31 | 2021-07-16 | 浙江宇视科技有限公司 | Riding method and riding system |
| CN112046549A (en) * | 2020-09-15 | 2020-12-08 | 青岛汉桦电子科技有限公司 | Vehicle-mounted intelligent monitoring system in rail train |
| CN115257860A (en) * | 2022-07-11 | 2022-11-01 | 深圳益实科技有限公司 | Intelligent reminding system and method capable of providing subway arrival information |
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